2493054721 has 2 divisors, whose sum is σ = 2493054722. Its totient is φ = 2493054720.

The previous prime is 2493054719. The next prime is 2493054763. The reversal of 2493054721 is 1274503942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2463732496 + 29322225 = 49636^2 + 5415^2 .

It is a cyclic number.

It is not a de Polignac number, because 2493054721 - 2¹ = 2493054719 is a prime.

Together with 2493054719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2493154721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1246527360 + 1246527361.

It is an arithmetic number, because the mean of its divisors is an integer number (1246527361).

Almost surely, 2^2493054721 is an apocalyptic number.

It is an amenable number.

2493054721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2493054721 is an equidigital number, since it uses as much as digits as its factorization.

2493054721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 2493054721 is about 49930.4989059793. The cubic root of 2493054721 is about 1355.9508167857.

The spelling of 2493054721 in words is "two billion, four hundred ninety-three million, fifty-four thousand, seven hundred twenty-one".